CN1018574B - Steam generator using waste heat - Google Patents
Steam generator using waste heatInfo
- Publication number
- CN1018574B CN1018574B CN89106681A CN89106681A CN1018574B CN 1018574 B CN1018574 B CN 1018574B CN 89106681 A CN89106681 A CN 89106681A CN 89106681 A CN89106681 A CN 89106681A CN 1018574 B CN1018574 B CN 1018574B
- Authority
- CN
- China
- Prior art keywords
- steam generator
- drum
- heating surface
- heat recovery
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
- F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/04—Steam boilers of forced-flow type of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Waste heat boiler in vertical construction with a drum (2) which is linked into a circulation system consisting of downpipes (3), evaporator heating surface (1) and riser pipes (4). To achieve a water circulation without use of a circulating pump, the downpipes (3) are connected to the evaporator heating surface (1) or its inlet collector (7) via a lower deviation (29). Moreover, the riser pipes can be directly connected to the steam chamber of the drum (2) via an upper deviation (9) and/or to the water chamber (11) of the drum (2).
Description
The present invention relates to a kind of gas turbine heat recovery steam generator afterwards that is located at, wherein be provided with at least one drum, this drum is included one in by at least one down-comer, at least one evaporimeter heating surface with comprise the circulatory system that the ascending tube system of at least one tedge constitutes, this down-comer extends downward on the plane of an introducing current collector that is lower than the evaporimeter heating surface, making water was bottom-up flowing before entering the introducing current collector, the evaporimeter heating surface is for being horizontally disposed with, and circulation is a Natural Circulation.
Heat recovery steam generator generally has two kinds of versions, i.e. natural recirculating type or forced cyclic type.During Natural Circulation, evaporimeter is restrained in the exhaust steam passage that is vertically set on a level and by down-comer and is linked to each other with at least one drum with tedge.Here can level or superheater vertically is set and economizer heating facial canal or other various heating surfaces that may exist.
In forced circulation structure, superheater, evaporimeter and economizer heating facial canal or other heating surfaces that may exist are horizontally set in the vertical exhaust steam passage.The evaporimeter heating surface links to each other with at least one drum with tedge by down-comer, circulating pump.Guaranteeing the circulating pump of the water circulation in the evaporimeter, take in the process investment and the workload except that setting up at equipment, still is a failure factor in running.
In the U.S. Pat 2,031,423 of authorizing in nineteen twenty-nine, the steam generator of this pattern described in first section in a kind of this paper is disclosed.At that time, the steam generator of making routinely, the pressure of its pressure ratio steam generator now is much lower.Being located in the heat recovery steam generator after the gas turbine of modern times, heat is added on the heating surface of evaporimeter suddenly, if adopt according to US2,031, the generating equipment of 423 natural recirculating type steam generator, heat will cause steam bubble in evaporator tube, make the overheated and damage of pipe, and circulation is undertaken by wrong direction.This problem is by US4, and 151,813 the structure that has the steam generator that heating surface vertically is set is overcome.But, have the evaporimeter that heating surface vertically is set and require very big space, therefore, under the situation of the steam generator that requires cramped construction, just so convenient not as having the evaporimeter that is horizontally disposed with heating surface.
The object of the present invention is to provide a kind of heat recovery steam generator, this heat recovery steam generator is located at after the gas turbine, possess in the advantage that does not have to guarantee under the situation of circulating pump the water circulation, and the water circulation can quicken the startup stage.
Begin in the heat recovery steam generator of described pattern at this paper, this task is solved by following feature, promptly is provided with starting drive in the ascending tube system, the water circulation the startup stage of with acceleration.
For the startup stage quicken the water circulation, in the down-comer system, be provided with an injector according to another feature of invention.The startup stage, by this injector by water (flow) direction confession additional water in the decline guard system.
According to another feature of invention, the startup stage, can be located in the ascending tube system and reach the purpose of quickening the water circulation to the playpipe of its water supply by one by water (flow) direction.
For the startup stage quicken the water circulation, another derived character according to invention is provided with one and supplies steam, water-vapor mixing body, gas in ascending tube system, as the device of nitrogen or other similar gas.
The measure of water circulation is the startup stage that last quickening, in the introducing of evaporimeter with discharge between the current collector connecting pipe that can end is set.
Below, elaborate other details of the present invention by accompanying drawing with embodiment.
Fig. 1 schematically illustrates the embodiment of heat recovery steam generator of the present invention.
Be provided with the evaporimeter heating surface 1 of vertical structure, drum 2, down-comer system 3, an ascending tube system 4 and a feedwater piping 5 of setting up feed pump 6 as the heat recovery steam generator of invention object.On the water route, drum 2 joins with down-comer system 3.Down-comer system 3 feeds by below pipeline section 29 and introduces current collector 7, and the tube system of evaporimeter heating surface 1 links to each other with introducing current collector 7.Implication to " below pipeline section " can be done following understanding, that is, down-comer 3 drops on the plane of an introducing current collector 7 that is lower than evaporimeter heating surface 1, and the result is, water is bottom-up flowing entering before introducing current collector.Therefore, can be interpreted as a kind of water pocket to " below pipeline section ".The outlet side of evaporimeter heating surface 1 joins with discharge current collector 8.Ascending tube system 4 feeds above-mentioned current collector 8 and links to each other with the vapor space 26 of drum 2 or directly link to each other with the hydrospace 11 of drum 2 by pipe-line system 10 by top pipeline section 9.Implication to " top pipeline section " can be done following understanding, that is, the height of steam-water mixture liquid level of water from be higher than drum 2 is introduced drum.
Feed pump 6 is extracted water out through feedwater piping 5 and is added to the hydrospace in the drum 11 from feed-tank or other feed-water vessel.
Water circulation in order to quicken the startup stage, can adopt following various system as starting supplementary means:
According to first derived scheme, be to establish an injector 12 in down-comer system 3, this injector is provided with disabling mechanism 14(for example a valve, a cock or other similar component by one) pipeline 13 join with feedwater piping 5.Owing to from feedwater piping 5, there is moisture stream to flow into down-comer system 3, therefore guaranteed dynamic exciting effect in the water circulation of when startup stage by the flow directions in the decline guard system 3.
According to second derived scheme, be that a water pump 16 is set in tributary pipeline 15, this pump connects together the injector 17 in down-comer system 3 and the ascending tube system 4.This pump provides boiler water by the water (flow) direction of ascending tube system in tedge system 4, the circulation of water startup stage of making obtains the dynamic exciting effect and after reaching the quiet cycle state, can 16 eliminate incentive actions by switching off the pump.
In category of the present invention, also possess a kind of possibility that pipeline 15 and pipeline 5 are connected together, accomplish the supply feedwater.Can remove water pump 16 in this case.Certainly also can from any other system, fetch water.
According to the third derived scheme, can be provided with disabling mechanism 19(as a valve, a cock or other similar component by one) pipeline 18 in ascending tube system 4, blast steam, nitrogen or a kind of other gas.Can strengthen thermosyphon effect and the cyclic process can guarantee the startup stage obtains quickening by this measure.
According to the 4th kind of derived scheme, being provided with one can be by disabling mechanism 21(as a valve, a cock or other similar component) pipeline 22 that ends.Both this pipeline be connected with discharging current collector 8 the introducing current collector 7 of evaporimeter heating surface 1.Because introducing current collector 7 and at least one at least one of evaporimeter heating surface 1 discharges between the current collector 8 and has installed such connecting pipe of ending 22, when forming first steam bubble, by these water through heating are directly imported ascending tube system 4, reach purpose in the circulation of startup stage excitation water.
By rationally determining the dimensions of the tube system of evaporimeter heating surface 1, down-comer system 3 and ascending tube system 4, the thermosyphon effect of the water circulation to improve the startup stage has positive role.
In addition, as shown in the figure, adopt ribbed pipe also beneficial to evaporimeter heating surface 1.
By below pipeline section 29, preferably also by top pipeline section 9 and/or directly ascending tube system 4 is communicated with the hydrospace 11 of drum 2, can keep known structure form waste heat boiler structure constant and in circulation, save circulating pump.
When being located at heat recovery steam generator after the gas turbine, as shown in the figure, evaporimeter heating surface 1 level is located in the exhaust steam passage 23, and the waste gas of one or some gas turbines enters this passage by the arrow A direction.Also can be horizontally disposed with superheater heating surface 24 above or below evaporimeter heating surface 1, its entrance side links to each other with the vapor space 26 of drum 2 with a pipeline 25 by an introducing current collector 30; Its outlet side leads to steam turbine by a discharge current collector 31 and a pipeline 27 that is provided with disabling mechanism 28.
Claims (6)
1, be located at gas turbine heat recovery steam generator afterwards, wherein be provided with at least one drum, this drum is included one in by at least one down-comer, the circulatory system of at least one evaporimeter heating surface and the ascending tube system formation that comprises at least one tedge, this down-comer extends downward on the plane of an introducing current collector that is lower than the evaporimeter heating surface, making water was bottom-up flowing before entering the introducing current collector, the evaporimeter heating surface is for being horizontally disposed with, circulation is a Natural Circulation, it is characterized in that being provided with starting drive in the ascending tube system (4) the water circulation the startup stage of with acceleration.
2, heat recovery steam generator according to claim 1 is characterized in that being provided with an injector (17) of spraying water in ascending tube system (4).
3, heat recovery steam generator according to claim 1, it is characterized in that being provided with one in ascending tube system (4), spray into steam, steam-water mixture, as the device of the gas of nitrogen and so on, as starting drive.
4, heat recovery steam generator according to claim 1 is characterized in that at the introducing current collector (7) of evaporimeter heating surface (1) and discharges between the current collector (8) connecting pipe that can end (22) is set, as starting drive.
5, heat recovery steam generator according to claim 1 is characterized in that ascending tube system (4) directly links to each other with the vapor space (26) of drum (2) by top pipeline section (9).
6, heat recovery steam generator according to claim 1 is characterized in that ascending tube system (4) directly is communicated with the hydrospace (11) of drum (2) by pipeline section system (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT2116/88A AT392683B (en) | 1988-08-29 | 1988-08-29 | HEAT STEAM GENERATOR |
| ATA2116/88 | 1988-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041438A CN1041438A (en) | 1990-04-18 |
| CN1018574B true CN1018574B (en) | 1992-10-07 |
Family
ID=3528112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89106681A Expired CN1018574B (en) | 1988-08-29 | 1989-08-12 | Steam generator using waste heat |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0357590B1 (en) |
| KR (1) | KR0142330B1 (en) |
| CN (1) | CN1018574B (en) |
| AT (1) | AT392683B (en) |
| DE (1) | DE58904955D1 (en) |
| DK (1) | DK169109B1 (en) |
| ES (1) | ES2043114T3 (en) |
| FI (1) | FI93055C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1005793A3 (en) * | 1992-05-08 | 1994-02-01 | Cockerill Mech Ind Sa | INDUCED CIRCULATION HEAT RECOVERY BOILER. |
| DE4441008A1 (en) * | 1994-11-17 | 1996-05-23 | Siemens Ag | Plant for steam generation according to the natural circulation principle and method for initiating water circulation in such a plant |
| DE19524727C2 (en) * | 1995-07-07 | 1998-04-09 | Nem Bv | Natural heat recovery steam generator |
| DE19534802A1 (en) * | 1995-09-20 | 1997-04-10 | Nem Bv | Heat recovery steam generators, particularly when used behind a gas turbine |
| DE19806244A1 (en) * | 1998-02-16 | 1999-08-19 | Babcock Kraftwerkstech Gmbh | Steam generator with several tube bundles |
| EP1443268A1 (en) * | 2003-01-31 | 2004-08-04 | Siemens Aktiengesellschaft | Steam generator |
| EP2034137A1 (en) * | 2007-01-30 | 2009-03-11 | Siemens Aktiengesellschaft | Method for operating a gas and steam turbine plant and the correspondingly designed gas and steam turbine plant |
| US9518731B2 (en) | 2011-03-23 | 2016-12-13 | General Electric Technology Gmbh | Method and configuration to reduce fatigue in steam drums |
| US20120247406A1 (en) * | 2011-03-28 | 2012-10-04 | Alstom Technology Ltd. | Method of controlling drum temperature transients |
| RU2491477C1 (en) * | 2012-02-08 | 2013-08-27 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Steam generator plant |
| WO2014108980A1 (en) * | 2013-01-10 | 2014-07-17 | パナソニック株式会社 | Rankine cycle device and cogeneration system |
| WO2015140361A1 (en) | 2014-03-21 | 2015-09-24 | Foster Wheeler Energia, S.L.U. | Evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow |
| US9982881B2 (en) * | 2015-04-22 | 2018-05-29 | General Electric Technology Gmbh | Method and system for gas initiated natural circulation vertical heat recovery steam generator |
| EP3835653A1 (en) | 2019-12-11 | 2021-06-16 | Siemens Aktiengesellschaft | Hot evaporator refilling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2031423A (en) * | 1929-03-15 | 1936-02-18 | Foster Wheeler Corp | Power plant |
| US2702026A (en) * | 1952-07-31 | 1955-02-15 | Svenska Maskinverken Ab | Steam generating plant utilizing heat emanating from many different sources |
| GB810900A (en) * | 1956-03-22 | 1959-03-25 | Vorkauf Heinrich | Improvements in steam generators with pressure-resistant, cylindrical casings |
| US4188916A (en) * | 1978-05-15 | 1980-02-19 | Deltak Corporation | Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants |
| US4316435A (en) * | 1980-02-27 | 1982-02-23 | General Electric Company | Boiler tube silencer |
-
1988
- 1988-08-29 AT AT2116/88A patent/AT392683B/en not_active IP Right Cessation
-
1989
- 1989-08-09 FI FI893754A patent/FI93055C/en not_active IP Right Cessation
- 1989-08-12 CN CN89106681A patent/CN1018574B/en not_active Expired
- 1989-08-18 EP EP89890214A patent/EP0357590B1/en not_active Expired - Lifetime
- 1989-08-18 DE DE8989890214T patent/DE58904955D1/en not_active Expired - Lifetime
- 1989-08-18 ES ES89890214T patent/ES2043114T3/en not_active Expired - Lifetime
- 1989-08-28 KR KR1019890012272A patent/KR0142330B1/en not_active IP Right Cessation
- 1989-08-28 DK DK422389A patent/DK169109B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK422389A (en) | 1990-03-01 |
| DE58904955D1 (en) | 1993-08-26 |
| KR0142330B1 (en) | 1998-07-01 |
| ATA211688A (en) | 1990-10-15 |
| DK169109B1 (en) | 1994-08-15 |
| CN1041438A (en) | 1990-04-18 |
| EP0357590B1 (en) | 1993-07-21 |
| ES2043114T3 (en) | 1993-12-16 |
| FI893754A (en) | 1990-03-01 |
| FI893754A0 (en) | 1989-08-09 |
| EP0357590A1 (en) | 1990-03-07 |
| AT392683B (en) | 1991-05-27 |
| FI93055C (en) | 1995-02-10 |
| DK422389D0 (en) | 1989-08-28 |
| KR900003582A (en) | 1990-03-26 |
| FI93055B (en) | 1994-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |